3 years ago

Can someone help me with this? (WILL GIVE BRAINLIEST)

1 answer:

6 0

the answer is in the picture, btw the molar mass for the first one is wrong, it should be 77.98, and the final product is 2.32

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Explanation:

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<h3>Further explanation</h3>

The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight/volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.

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$\tt \%mass=\dfrac{mass~solute}{mass~solution}\times 100\%\\\\\%mass=\dfrac{28.5~g}{185~g}\times 100\%\\\\\%mass=15.41\%$

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